Rockwell Automation Flex-WebPak 3000 User Manual

In verting Fault Circuit Bre aker Kit

Trademarks not belonging to Rockwell Automation are property of their
respective companies.

for FlexP ak 3000 and W ebP ak 3000 Digital DC Drives

1.5 - 30 HP @ 230 V AC and 3-60 HP @ 460 VA C

Model Numbers: 906FK0101, 906FK0201, 906FK0301, 906FK0401, and 906FK0501

Instruction Manual D2-3300-2

ATTENTION:Only qualified personnel familiar with the construction and operation of this

equipment and the hazards involved should install, adjust, operate, and/or service this equipment.

!

Product Description

This instruction manual describes how to install the optional Inverting Fault Circuit Breaker kit on regenerative
FlexPak
recommended when applying regenerative drives to high inertia loads. High inertia loads are those in which

the reflected load to the motor is equal to or greater than the motor’s load, or in which the drive is frequently
regenerating power to the AC line, such as in unwind and pay-off application.

Read and understand this instruction manual in its entirety before proceeding. Failure to observe
this precaution could result in severe bodily injury or loss of life.

ATTENTION:The user is responsible for conforming with all applicable local, national, and
international codes. Failure to observe this precaution could result in damage to, or destruction
of, the equipment.

 3000 and WebPak 3000 drives (1.5-30 HP @ 230 VAC and 3-60 HP @ 460 VAC .) Use of this kit is

An inverting fault typically occurs as a result of a loss of the AC line. If this happens, the AC input transformer
becomes a short circuit across the motor. Since the SCRs in the bridge no longer turn off, the motor’s stored
mechanical energy is regenerated into the short circuit. The inverting fault circuit breaker interrupts the
generator action, protecting the SCR bridge and the motor.

In addition to the parts included in the kit, you must supply an appropriate mounting panel for the inverting fault
circuit breaker and provide circuit breaker wiring.

Important: If any other interlocks are required for your application, they must be connected in series to the

Customer Interlock Input along with the circuit breaker.

Table 1 – Verifying That the Inverting Fault Circuit Breaker Matches the Drive

Drive Horsepower/Voltage Rating Kit Model Number

1.5 - 2 HP @ 230 VAC
3 - 5 HP @ 460 VAC

3 - 5 HP @ 230 VAC

7.5 - 10 HP @ 460 VAC

7.5 - 10 HP @ 230 VAC
15 - 20 HP @ 460 VAC

15 - 20 HP @ 230 VAC
25 - 40 HP @ 460 VAC

25 - 30 HP @ 230 VAC
50 - 60 HP @ 460 VAC

906FK0101

906FK0201

906FK0301

906FK0401

906FK0501

FlexPak, WebPak, and Reliance are trademarks of Rockwell Automation

©2001 Rockwell International Corporation

Table 2 – Contents of the Inverting Fault Circuit Breaker Option

Description

Inverting Fault Circuit Breaker Assembly
M5 x 10 Self-Tapping Screw
Jumper
Bus Bar
Bus Bar
Ring Lug
Wire Harness
Wire Harness

Quantity

1
4
1
1
1
1
1
1

Part Number

802273-85x
419062-100PHG
610273-30RN
610273-101A
610273-102A
68321-19D
610273-68S
610273-68R

Installing the Inverting Fault Circuit Breaker

ATTENTION:The drive is at line voltage when disconnected to incoming AC power. Disconnect,

tag, and lock out all incoming power to the drive before performing the following procedures.

!

Installing the Inverting Fault Circuit Breaker Kit involves the following processes:

• Mounting the Inverting Fault Circuit Breaker Kit

Failure to observe this precaution could result in severe bodily injury or loss of life.
ATTENTION:The user is responsible for conforming with all applicable local, national, and

international codes. Failure to observe this precaution could result in damage to, or destruction
of, the equipment.

• Wiring the Inverting Fault Circuit Breaker

• Removing and Replacing Fuse 11FU

• Connecting the Wire Assembly

• Checking the Circuit Breaker Settings

2

Inverting Fault Circuit Breaker Kit for FlexPak 3000 and WebPak 3000 Drives

Mounting the Inverting Fault Circuit Breaker Kit

Step 1. Disconnect, tag, and lock out power to the drive.
Step 2. Drill the mounting holes (4.6 mm diameter) for the circuit breaker mounting plate using the mounting

hole pattern shown in Figure 1.

Figure 1 – Inverting Fault Circuit Breaker Mounting Hole Pattern

Step 3. Mount the circuit breaker and the plate assembly with the four M5 self-tapping screws provided with

the kit.

Inverting Fault Circuit Breaker Kit for FlexPak 3000 and WebPak 3000 Drives

3